Maine Healthy Beaches Portal

Water Quality Monitoring and Beach Status

Beach Monitoring Season is from Memorial Day to Labor Day

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Table

Water Quality Monitoring Data

Half Mile Beach

Maine's Beach Action Value (BAV or safety threshold) for Enterococcus bacteria in marine waters is 104 MPN/100mL.

Site Name Date Collected Enterococcus (MPN/100mL)
RSP-06
06/03/2024
< 10
RSP-06
07/01/2024
< 10
RSP-06
07/29/2024
< 10
RSP-06
08/26/2024
10
RSP-06
06/16/2025
10
RSP-06
07/14/2025
41
RSP-06
08/11/2025
10
RSP-06
06/20/2022
< 10
RSP-06
07/18/2022
31
RSP-06
08/22/2022
< 10
RSP-06
06/05/2023
< 10
RSP-06
07/06/2023
< 10
RSP-06
07/31/2023
< 10
RSP-06
08/28/2023
< 10
RSP-06
07/06/2020
< 10
RSP-06
08/03/2020
< 10
RSP-06
06/08/2026
< 10
RSP-06
07/13/2026
< 10
RSP-06
08/10/2026
< 10
RSP-06
08/31/2026
< 10
RSP-07
06/03/2024
< 10
RSP-07
07/01/2024
41
RSP-07
07/29/2024
< 10
RSP-07
08/26/2024
10
RSP-07
06/16/2025
< 10
RSP-07
07/14/2025
74
RSP-07
08/11/2025
< 10
RSP-07
06/20/2022
< 10
RSP-07
07/18/2022
< 10
RSP-07
08/22/2022
< 10
RSP-07
06/05/2023
< 10
RSP-07
07/06/2023
< 10
RSP-07
07/31/2023
10
RSP-07
08/28/2023
10
RSP-07
07/06/2020
< 10
RSP-07
08/03/2020
< 10
RSP-07
06/08/2026
< 10
RSP-07
07/13/2026
31
RSP-07
08/10/2026
< 10
RSP-07
08/31/2026
< 10

Download Data: Water quality data are available for download using the buttons below. This download will include date collected, time collected, Enterococcus, salinity, water temperature, and air temperature.

Download Excel   Download CSV   Download XML

*MHB's water quality data are provided in real-time and are subject to revision. This season’s data are preliminary and have not received final quality assurance/quality control (QA/QC) review.